Sell License Keys for Software
The WooCommerce Software Add-on gives you the ability to manage license keys and activations via your store.
Sell licenses and upgrades
Define your products as software via the edit product page, and after doing so lets you define software specific properties:
Customers purchase software like any other product, but after doing so (when the order is completed) they will receive an auto-generated license key from the system within their order-complete email.
Order emails contain the key, activation email, and activations remaining. You can resend these emails using the in-built ‘send’ button in WooCommerce on the orders screen.